GTAW TIG/Stick inverter power source features high-speed pulsing

Miller Electric Mfg. Co. has introduced its Maxstar 350 DC GTAW/Stick inverter. Compared to the previous model, the welding machine offers high-speed pulsing capabilities (now up to 5,000 pulses per second (PPS), a ten-fold improvement), 50 amps more welding power, Auto-line power management technology, and a more robust design, the company says.

The machine delivers 5 to 350 amp output (300 A at 32 V, 60 percent duty cycle), weighs 135.5 lbs. and features Auto-Line technology, which enables it to run from any input power, 208 to 575 V, single- or three-phase.

Users can adjust the number of PPS from 0.1 to 5,000 PPS, control the amount of time each pulse cycle spends at peak amperage from 5 to 95 percent of total cycle time, and set the background or current pulsing value to between 5 to 99 percent of peak amperage.